Does their tongue help them eat and how long is it?

Yes, a tongue plays a crucial role in the eating process by helping with the manipulation and movement of food within the mouth, aiding in chewing and swallowing. The length of a tongue varies significantly among different species; for example, the average human tongue is about 3 to 4 inches long, while some animals, like certain species of frogs, can have much longer tongues relative to their body size to catch prey effectively.